How do I

How do I get a sound to only play once when a key is pressed - I thought that this would work?

http://planetserve.com/sound.capx

The triggered once is unnecessary, because the 'one pressed' event is a triggered event (green arrow).

It will trigger every time you press z but only once, even if the sound is playing. If you want that it only plays when the sound has ended you have to use a second condition.

An example:

Give your sound a tag-name, something like FlipperSound.

Keyboard| On Z Pressed                 -> Audio| Play flipper not looping ... (Tag"FlipperSound")
Audio|(invert) Tag "FlipperSound" is playing
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Thanks Asmodean!